Rio de Janeiro
Brazil
Long-term weather forecast
Long-term weather forecast

Monthly weather forecast and climate
Rio de Janeiro, Brazil

January, the same as December, is a moderately hot summer month in Rio de Janeiro, Brazil, with average temperature varying between 29.2°C (84.6°F) and 23.7°C (74.7°F). In Rio de Janeiro, the average high-temperature is relatively the same as in December - a still warm 29.2°C (84.6°F). Weather in January »

The last month of the summer, February, is also a moderately hot month in Rio de Janeiro, Brazil, with temperature in the range of an average low of 23.5°C (74.3°F) and an average high of 29.7°C (85.5°F). February is the warmest month, with an average high-temperature of 29.7°C (85.5°F) and an average low-temperature of 23.5°C (74.3°F). The average heat index is calculated to a sweltering 36.2°C (97.2°F). Weather in February »

The first month of the autumn, March, is still a warm month in Rio de Janeiro, Brazil, with average temperature fluctuating between 28.3°C (82.9°F) and 22.9°C (73.2°F). In March, the average high-temperature is almost the same as in February - a still warm 28.3°C (82.9°F). Weather in March »

April, like March, in Rio de Janeiro, Brazil, is another warm autumn month, with average temperature fluctuating between 21.5°C (70.7°F) and 26.8°C (80.2°F). In Rio de Janeiro, the average high-temperature is relatively the same as in March - a still moderately hot 26.8°C (80.2°F). Weather in April »

The last month of the autumn, May, is another warm month in Rio de Janeiro, Brazil, with average temperature ranging between min 19.7°C (67.5°F) and max 25.2°C (77.4°F). In May, the average high-temperature is relatively the same as in April - a still warm 25.2°C (77.4°F). Weather in May »

The first month of the winter, June, is also a moderately hot month in Rio de Janeiro, Brazil, with average temperature varying between 24.2°C (75.6°F) and 18.9°C (66°F). In June, the average high-temperature is essentially the same as in May - a still warm 24.2°C (75.6°F). Weather in June »

July, like June, in Rio de Janeiro, Brazil, is another warm winter month, with average temperature fluctuating between 18.7°C (65.7°F) and 24°C (75.2°F). With an average high-temperature of 24°C (75.2°F) and an average low-temperature of 18.7°C (65.7°F), July is the coldest month. Weather in July »

The last month of the winter, August, is also a moderately hot month in Rio de Janeiro, Brazil, with average temperature varying between 18.5°C (65.3°F) and 24.3°C (75.7°F). In August, the average high-temperature is essentially the same as in July - a still moderately hot 24.3°C (75.7°F). Weather in August »

September, the first month of the spring, in Rio de Janeiro, is still a warm month, with average temperature fluctuating between 19.4°C (66.9°F) and 25°C (77°F). In Rio de Janeiro, the average high-temperature in September is almost the same as in August - a still moderately hot 25°C (77°F). Weather in September »

October, the same as September, is another warm spring month in Rio de Janeiro, Brazil, with average temperature ranging between min 20.6°C (69.1°F) and max 26.3°C (79.3°F). In Rio de Janeiro, Brazil, the average high-temperature is practically the same as in September - a still warm 26.3°C (79.3°F). Weather in October »

November, the last month of the spring, in Rio de Janeiro, is another warm month, with average temperature varying between 26.4°C (79.5°F) and 21.5°C (70.7°F). In November, the average high-temperature is almost the same as in October - a still warm 26.4°C (79.5°F). Weather in November »

The first month of the summer, December, is also a moderately hot month in Rio de Janeiro, Brazil, with temperature in the range of an average high of 28.2°C (82.8°F) and an average low of 23°C (73.4°F). In December, the average high-temperature is relatively the same as in November - a still warm 28.2°C (82.8°F). Weather in December »

How many days does it rain in Rio de Janeiro?

In Rio de Janeiro, Brazil, during the entire year, the rain falls for 192.5 days and collects up to 812mm (31.97") of precipitation.

When is the highest UV index in Rio de Janeiro?

The month with the highest UV index is January, with an average maximum UV index of 7.

What is the warmest month in Rio de Janeiro?

With an average high-temperature of 29.7°C (85.5°F) and an average low-temperature of 23.5°C (74.3°F), February is the warmest month in Rio de Janeiro, Brazil.

What month has the most sunshine in Rio de Janeiro?

February has the most sunshine of the year, with an average of 8.8h of sunshine.

What month is the sea warmest in Rio de Janeiro?

The month with the warmest seawater is March, with an average sea temperature of 25.8°C (78.4°F).

What is the driest month in Rio de Janeiro?

The month with the least rainfall is June when the rain falls for 9.8 days and typically collects 29mm (1.14") of precipitation.

What is the month with the shortest days in Rio de Janeiro?

With an average of 10.7h of daylight, June has the shortest days of the year.

What is the coldest month in Rio de Janeiro?

July is the coldest month, with an average high-temperature of 24°C (75.2°F) and an average low-temperature of 18.7°C (65.7°F).

What is the least humid month in Rio de Janeiro?

August is the least humid month, with an average relative humidity of 76%.

What is the month with the coldest sea water in Rio de Janeiro?

With an average sea temperature of 21.6°C (70.9°F), September is the month with the coldest seawater in Rio de Janeiro.

When is the lowest UV index in Rio de Janeiro?

With an average maximum UV index of 5, September is the month with the lowest UV index.

What is the month with the least sunshine in Rio de Janeiro?

The month with the least sunshine in Rio de Janeiro is October, with an average of 7.5h of sunshine.

What is the most humid month in Rio de Janeiro?

The most humid month is November, with an average relative humidity of 82%.

What is the wettest month in Rio de Janeiro?

November is the month with the most rainfall in Rio de Janeiro, Brazil. Rain falls for 21.3 days and accumulates 119mm (4.69") of precipitation.

When are the longest days in Rio de Janeiro?

The month with the longest days is December, with an average of 13.5h of daylight.
Average temperature - Rio de Janeiro, Brazil
Average humidity - Rio de Janeiro, Brazil
Average rainfall - Rio de Janeiro, Brazil
Average rainfall days - Rio de Janeiro, Brazil

The month with the highest number of rainy days is March (22.7 days).
The month with the least rainy days is July (9.3 days).

Average sea temperature - Rio de Janeiro, Brazil

The best month for swimming (with the highest average sea temperature) is March (25.8°C).
The coldest month (with the lowest average sea temperature) is September (21.6°C).

Average daylight / Average sunshine - Rio de Janeiro, Brazil

The month with the longest days is December (Average daylight: 13.5h).
The month with the shortest days is June (Average daylight: 10.7h).

The month with the most sunshine is February (Average sunshine: 8.8h).
The month with the least sunshine is October (Average sunshine: 7.5h).